Device for centering printers&#39; rollers.



No. 70I,090. Patented May 27, I902. H. A. REGEL. DEVICE FOR CENTERING PRINTERS ROLLERS.

(Application filed Sept. 20, 1901.)

(No Model.)

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STATES PATENT OFFICE.

HENRY A. REGEL, OF BROOKLYN, NEW YORK.

DEVICE FOR CENTERING PRINTERS ROLLERS.

SPECIFICATION forming part of Letters Patent No. 701,090, dated May 27, 1902.

I Application filed September 20,1901.. eria11 lo. 75,882. (No model.)

To all whom it may concern:

Be it known that I, HENRY A. REGEL, a citizen of the United States,residing at Brooklyn borough, New York city, in the county of device. Fig. 2 is a horizontal section along mm, Fig. 1. Fig. 3 is ahorizontal section along y y, Fig. 1.

By means of this device printers rollers can be accurately centered within the mold. The core of the roller is shown at a. and is provided with journals 1) I). The journal Z7 is centered in a plug a, and this plug or foot fits into the cylinder d,which forms the mold within which the composition is poured or forced to form the outer cover of the roller. The journal I) is snugly fitted into a bushing e, which is provided with a ring f and fastened to the bushing by a set-screw g. To this ring are pivoted one end of the links h. The ring 1' slides on the bushing and is provided with links 7', which are pivoted to the ring and to the links 7L. These links 7L and j form toggle-levers, which will automatically adjust themselves to the inner surface of the mold. The toggles are pressed against the inner surface of the mold by a spring k, which butts against the upper portion of the sliding ring and against a shoulder or suitable part on the bushing. The bushing is made interchangeable for various diameters of rollers. By loosening the set-screw g the rings and spring can be removed from the bushing and used for a bushing with a larger or smaller inside diameter or bore.

The device is self-adjusting or accurately centers itself in the mold, the spring 7; acting equally on all the links. In speaking of the bushings 6 being interchangeable or removable it is understood that the various bushings are made with the same external diameter to snugly fit or fill the ringf, but with varying bores or interior diameters,-as required for varying journals 1) or gudgeons of different thickness or diameter. To hold the core a properly in positionin the mold, the centering device should not only firmly engage the mold, but the bushing should also snugly fit or engage the journal.

This automatic adjusting or centering de vice is also of advantage, as it compensates for wear. The joints or knuckles uniting each pair of links 7% j to one another being pressed with equal intensity against the mold or in case of friction being all exposed to equal pressure will be worn down uniformly, so that the axis of the bushing 6 will be kept centered in the mold even if such device has been in use a considerable time. As the spring spreads the links the latter will engage or contact with the walls of molds having varying diameters or sizes. The centering devices can of course be made of any suitable size and material as called for, according to the rollers to be cast.

What I claim as new, and desire to secure by Letters Patent, is-

1. A centering device for printers rollers having a plurality of members adapted to engage the inner surface of a mold at separate places and yieldable means for exerting a constant pressure against said members to force their working ends against such surface.

2. A centering device for printers rollers including a centering member and a bushing carrying the centering member, means for detachably connecting said parts, and means acting against said centering member to normally increase the effective size thereof.

3. A centering device for printers rollers including a bushing and a ring on the same, said parts being detachably connected, and an adjustable centering member in connection with the bushing and ring.

4. A centering device for printersrollers comprising a bushing, spreading-links for centering in a mold andmeans upon the bushing to which said links are connected substantially as described.-

5. A centering device comprising a bushring, and links jointed to one another and to. 10 the rings so as to be spread or expanded as the spring presses the rings toward one another substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

HENRY A. REGEL.

Witnesses:

W. O. 'I-IAUFF, E. F. KASTENHUBER. 

